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<HEAD>
<TITLE>JavaScript Source Code 3000:  Page Details:  Session Time Out</TITLE>
<META HTTP-EQUIV="JavaScript Source Code 3000" CONTENT = "no-cache">
<META NAME="date" CONTENT="2000-09-09">
<META NAME="channel" CONTENT="Web Developer">
<META NAME="author" CONTENT="Ronnie T. Moore, Editor">
<META NAME="section" CONTENT="Page Details">
<META NAME="description" CONTENT="Allows you to 'time out' users if they do not interact with the web page for a certain number of minutes.  This acts as a security feature to allow web-based applications to logoff users if they do not interact with the server periodically.  A timer on the page and the browser's status bar displays the time remaining before timing out.">

<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Ronnie T. Moore, Editor -->




<!-- Begin
// Take user here after session timed out
timedouturl = "session-timed-out.html";

function Minutes(data) {
for (var i = 0; i < data.length; i++)
if (data.substring(i, i + 1) == ":")
break;
return (data.substring(0, i));
}
function Seconds(data) {
for (var i = 0; i < data.length; i++)
if (data.substring(i, i + 1) == ":")
break;
return (data.substring(i + 1, data.length));
}
function Display(min, sec) {
var disp;
if (min <= 9) disp = " 0";
else disp = " ";
disp += min + ":";
if (sec <= 9) disp += "0" + sec;
else disp += sec; 
return (disp);
}
function Down() { 
sec--;      
if (sec == -1) { sec = 59; min--; }
document.timerform.clock.value = Display(min, sec);
window.status = "Session will time out in: " + Display(min, sec);
if (min == 0 && sec == 0) {
alert("Your session has timed out.  You would have been taken to the re-login screen but this is just a demo.");
//window.location.href = timedouturl;
}
else down = setTimeout("Down()", 1000);
}
function timeIt() {
min = 1 * Minutes(document.timerform.clock.value);
sec = 0 + Seconds(document.timerform.clock.value);
Down();
}
//  End -->
</script>
</HEAD>

<BODY BGCOLOR=#ffffff vlink=#0000ff OnLoad="timeIt()">

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<FONT COLOR="#006666"><b>Session Time Out</b></font></font>
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<!-- Description --><!--content_start-->
Allows you to 'time out' users if they do not interact with the web page for a certain number of minutes.  This acts as a security feature to allow web-based applications to logoff users if they do not interact with the server periodically.  A timer on the page and the browser's status bar displays the time remaining before timing out.
<hr>
</td></tr>
</table>
<!-- Demonstration -->
<center>
<form name="timerform">
<input type="text" name="clock" size="7" value="5:00"><p>
</form>
</center>
<br>
<font color=red>(Your session will time out in 5 minutes.<br>Also see status bar at bottom of browser)</font>
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<P>
<a name="source">
<table BORDER=0 WIDTH=486 CELLPADDING=3 CELLSPACING=0>
<tr><td BGCOLOR=yellow><font FACE="helvetica,arial,geneva"><b>JavaScript Source Code 3000:  Page Details:  Session Time Out</b>
<p>Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s).  The script is yours!!!
<br><br></font></td></tr>
<tr><td BGCOLOR=yellow ALIGN=CENTER>
<form NAME="copy">

<DIV align="center">
<input type=button value="Highlight All" onClick="javascript:this.form.txt.focus();this.form.txt.select();">&nbsp;&nbsp;&nbsp;&nbsp;
<INPUT TYPE="text" NAME="total" VALUE="Script Size:  1.90 KB" size=24>
</DIV>

<textarea NAME="txt" ROWS=20 COLS=75 WRAP=VIRTUAL>

&lt;!-- THREE STEPS TO INSTALL SESSION TIME OUT:

  1.  Copy the coding into the HEAD of your HTML document
  2.  Add the onLoad event handler into the BODY tag
  3.  Put the last coding into the BODY of your HTML document  --&gt;

&lt;!-- STEP ONE: Paste this code into the HEAD of your HTML document  --&gt;

&lt;HEAD&gt;

&lt;SCRIPT LANGUAGE="JavaScript"&gt;
&lt;!-- Original:  Ronnie T. Moore, Editor --&gt;

&lt;! &gt;
&lt;! &gt;

&lt;!-- Begin
// Take user here after session timed out
timedouturl = "session-timed-out.html";

function Minutes(data) {
for (var i = 0; i &lt; data.length; i++)
if (data.substring(i, i + 1) == ":")
break;
return (data.substring(0, i));
}
function Seconds(data) {
for (var i = 0; i &lt; data.length; i++)
if (data.substring(i, i + 1) == ":")
break;
return (data.substring(i + 1, data.length));
}
function Display(min, sec) {
var disp;
if (min &lt;= 9) disp = " 0";
else disp = " ";
disp += min + ":";
if (sec &lt;= 9) disp += "0" + sec;
else disp += sec; 
return (disp);
}
function Down() { 
sec--;      
if (sec == -1) { sec = 59; min--; }
document.timerform.clock.value = Display(min, sec);
window.status = "Session will time out in: " + Display(min, sec);
if (min == 0 && sec == 0) {
alert("Your session has timed out.");
window.location.href = timedouturl;
}
else down = setTimeout("Down()", 1000);
}
function timeIt() {
min = 1 * Minutes(document.timerform.clock.value);
sec = 0 + Seconds(document.timerform.clock.value);
Down();
}
//  End --&gt;
&lt;/script&gt;
&lt;/HEAD&gt;

&lt;!-- STEP TWO: Insert the onLoad event handler into your BODY tag  --&gt;

&lt;BODY OnLoad="timeIt()"&gt;

&lt;!-- STEP THREE: Copy this code into the BODY of your HTML document  --&gt;

&lt;center&gt;
&lt;form name="timerform"&gt;
&lt;input type="text" name="clock" size="7" value="2:00"&gt;&lt;p&gt;
&lt;/form&gt;
&lt;/center&gt;

 

&lt;!-- Script Size:  1.90 KB --&gt;</textarea><br><font FACE="helvetica,arial,geneva"></font></td></tr>

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</form>
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